Coal is an example of–

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(c) Sedimentary Rocks — Coal is an example of sedimentary rock. Sedimentary rocks are found because of deposition of fragments of rocks by exogenous process. Sedimentary rocks are classified into three major groups: (i) mechanically formed e.g. sandstone, conglomerate, limestone, shale, loess etc. (ii) organically formed e.g. geyserite, chalk, limestone, coal etc. (iii) chemically formed e.g. chert, limestone, halite, potash etc.

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(A) Igneous Rocks

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(B) Metamorphic Rocks

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(D) All of them

Coal is an example of–

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